Home / 13,288.96-19,928.64-4,402.64

Finding the Fourth Proportional to 13,288.96, 19,928.64 and 4,402.64

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Solution

The fourth proportional to 13,288.96, 19,928.64 and 4,402.64 is: 6,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.96 : 19,928.64 = 4,402.64 : x
  2. Step 2: Convert to fraction form
    13,288.96/19,928.64 = 4,402.64/x
  3. Step 3: Cross multiply
    13,288.96x = 19,928.64 × 4,402.64
  4. Step 4: Simplify right side
    13,288.96x = 87,738,627.61
  5. Step 5: Solve for x
    x = 87,738,627.61/13,288.96
  6. Step 6: Final answer
    x = 6,602.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.